Boiler makeup must be deaerated before being introduced into the system. This is sometimes done in a vessel called a deaerator. A vacuum is pulled on the vessel and the makeup water is passed through it to remove all dissolved gases prior to introducing it to the system.
Suction Capacity: 95 to 340 ACFM (160 to 580 m3/h)
Vacuum Range: 1 inHgA (33 mbar abs.)